package thread;

import java.util.ArrayList;

public class ThreadList {
    public static void main(String[] args) {
        ArrayList<Integer> list=new ArrayList<>();
        Thread t1=new Thread(){
            public void run(){

                    for (int i = 0; i < 1000; i++) {
                        synchronized (list) {
                            list.add(i);

                        }
                }
            }
        };

        Thread t2=new Thread(){
            public void run(){

                    for (int i = 0; i < 1000; i++) {
                        //静态方法选类对象
                        synchronized (list) {
                            list.add(i);
                        }
                }
            }
        };
        t1.start();
        t2.start();

        try {
            Thread.sleep(1000);
            System.out.println(list.size());
            System.out.println(list);

        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}
